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Learn how to automatically detect breaking changes in Terraform modules using Terraform Tests framework to ensure safer module evolution and upgrades. Explore the critical challenges platform engineering teams face when maintaining Terraform modules at scale, particularly the difficulty of identifying subtle upgrade-breaking changes that can cause production issues or require manual intervention during version upgrades. Discover practical approaches to building automated tooling around Terraform Tests that surfaces breaking changes early in the development lifecycle, moving beyond simple manual detection during PR reviews to catch complex changes that prevent smooth upgrade paths between module versions. Gain insights from real-world experience in implementing detection systems that improve confidence in module evolution across teams with open contributions and multiple stakeholders, while maintaining consistency, reliability, and alignment with organizational standards in scaled platform engineering environments.
